[Therion] Feedback on 0.3.8 - queries

[Philip Balister]

I have several miles with potential for more I would like to do in
Therion, it is just a matter of getting started for me.

Philip

On Wed, 2005-08-10 at 14:30 +0200, Stacho Mudrak wrote:
> First of all, I am impressed with your map! It's a great feeling for me 
> to know, that someone else is using therion for such a huge cave.
> 
> There was no traffic in the mailing list, so I was worried, that all the 
> people that tried therion are disappointed with it. So I left therion 
> developement and started to work on the new 3D viewer for therion. And 
> there was a lot of problems to solve - especially with unicode OpenGL 
> support and off-screen poster rendering. So there was no time for 
> therion developement.
> 
> Wookey wrote:
> > 1) Is there a dripline symbol for the entrance extent? Do I use 'overhang'?
> > I tried using overhang and nothing appears (because it is outside the clipped
> > area?) Should I use overhang and add a -outline out option?
> > 
> > 2) How can I represent a surface cliff line between a series of caves? 
> > 
> > I have a lot of cave entrances with a defined cliffline between them. the
> > survey makes a lot more sense if this surface feature can be seen. How can I
> > draw a line on to represent this?
> 
> We have been already thinking of some surface specific symbols.
> According to your mail - you would like to have two new line types:
> 
> line drip (or dripline)
> line cliff (or cliffline)
> 
> Could you plase write us, what syntax makes more sense? We should
> probably make difference also between underground and surface contours.
> Probably also
> 
> line surface-contour
> 
> is needed. All those lines will have clipping turned off by default.
> 
> Another point - using "-outline out" for surface features is probably
> not correct. It will make huge problems when generating clipping paths
> and 3D model. Use instead "-clip off" option, if you do not want that
> line to be clipped.
> 
> Another possibility is to add all surface features into specific scrap,
> where no outline will be defined (=> no lines will be clipped).
> 
> > 3)What to do when entrance line draws scrap end across to the wrong point
> > (e.g. deception entrance?) In the bottom LH corner of the survey above is
> > 'Deception Cave'. If you look at '1st entrance' you will see the problem I
> > mean. Therion has decided to ignore the last bit of wall and just draw a
> > line across the gap between the nearest points. How do I make a wide, flared
> > entrance like this have the 'correct' entrance area? This may be related to
> > question 1.
> 
> Very simple but quite often problem. Just connect the entrance ends with
> 
> line wall -subtype invisible
> 
> I know that invisible wall is not very intuitive, but it is very easy to
> use - because you do not need to stop entering line - you just type
> subtype spec to line point options.
> 
> If you do not like it - you can use
> 
> line border -subtype invisible -outline out
> 
> instead. But we are using invisible walls.
> 
> > 4) How is length in legend calculated when data is imported from .3d file?
> > The survey above consists of a lot of scraps round real data and a lot round
> > 'fake' data made from surveys which are nothing but drawings scaled with the
> > scale bar or a few nearby or fake survey stations. The survex .3d file used
> > includes survex data for the whole mountain including another 50km of cave
> > or so. So where is the number in the legend coming from?
> 
> It should be the total length of all centerline objects, to which scraps
> in the map refers to (surface shots should be excluded). Uff, I am not
> sure whether you understand this explanation.
> 
> In the case of import - centerline object is created for each survey
> object and shots are splitted into surveys. So in your case it is the
> sum of lengths of all surveys, you refers to in maps. Or at least it
> should be.
> 
> If the number does not make sense - you can redefine it in layout. Use
> 
> code tex-map
> \cavelength={1234 m}
> endcode
> 
> or something like this. I am not sure.
> 
> In the TODO list I already have something like setting survey in layout,
> from which length and depth will be taken. Example:
> 
> statistics source-survey somesurvey.topsurvey
> 
> Would it make sense for you?
> 
> 
> > 5) How do I get rid of the 'dummy' survey surrounding all my data which
> > means the title of the whole thing is 'dummy'. I may have been told this
> > before in which case I apologise for forgetting the answer.
> 
> Import should work without this dummy survey (outside of survey
> context). Have you tried? If not, there is some bug.
> 
> > 6) When is a label under passage and when over?
> > As you can see I have some of both in this survey. Is it to do with the
> > ordering of walls and labels within the scrap? Or maybe there is an 'ontop'
> > option?
> 
> There is no 'ontop' option. Label is on the top of the scrap - in which
> it is defined. If some other map overlays it - the label will be under
> this passage. Would you like to have something like 'ontop' option?
> 
> S.
> 
> 
>